// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System;
using System.Runtime.CompilerServices;

namespace CommunityToolkit.WinUI.Predicates;

/// <summary>
/// An <see cref="IPredicate{T}"/> type matching items of a given type.
/// </summary>
/// <typeparam name="T">The type of items to match.</typeparam>
internal readonly struct PredicateByFunc<T> : IPredicate<T>
    where T : class
{
    /// <summary>
    /// The predicatee to use to match items.
    /// </summary>
    private readonly Func<T, bool> predicate;

    /// <summary>
    /// Initializes a new instance of the <see cref="PredicateByFunc{T}"/> struct.
    /// </summary>
    /// <param name="predicate">The predicatee to use to match items.</param>
    public PredicateByFunc(Func<T, bool> predicate)
    {
        this.predicate = predicate;
    }

    /// <inheritdoc/>
    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public bool Match(T element)
    {
        return this.predicate(element);
    }
}
